i wanna ask if i can configure ldap i mean create accounts with the openldap interface ? how is this?

No, you can't do that. Under no circumstances should you modify any of part of LDAP you will break your installation.

Originally Posted by najoud

how i can send an email to the extern i mean to hotmail.com for exemple?

The obvious answer is create a new email, enter the mail address and send it. If you're having problems then post some details of what's happening and any errors from the log files. You should also search the forums for some information on similar problems and their resolution.

i have tried to send mail to an extern email adress and i didint receive it

I've already given you the link to the log files, have a look in there and see what errors you're getting.

Originally Posted by najoud

how i configure the ldap so that i can send and receive emails from the extern

You do not do anything with LDAP - do NOT modify it.

You're not actually giving us much information so we can give you and help or advice. Update your forum profile with the output of 'zmcontrol -v' and which operating system are you using. If you are running behind a NAT router you'll need a Split DNS set-up, have you got one? Please search the forums and wiki for answers to your questions they have all been asked before.